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Early Universe synthesis of asymmetric dark matter nuggets

Gresham, Moira I. and Lou, Hou Keong and Zurek, Kathryn M. (2018) Early Universe synthesis of asymmetric dark matter nuggets. Physical Review D, 97 (3). Art. No. 036003. ISSN 2470-0010. doi:10.1103/physrevd.97.036003.

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We compute the mass function of bound states of asymmetric dark matter—nuggets—synthesized in the early Universe. We apply our results for the nugget density and binding energy computed from a nuclear model to obtain analytic estimates of the typical nugget size exiting synthesis. We numerically solve the Boltzmann equation for synthesis including two-to-two fusion reactions, estimating the impact of bottlenecks on the mass function exiting synthesis. These results provide the basis for studying the late Universe cosmology of nuggets in a future companion paper.

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Alternate Title:Making Asymmetric Dark Matter Gold: Early Universe Synthesis of Nuggets
Additional Information:Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. (Received 31 July 2017; published 12 February 2018) We thank Dorota Grabowska, Tom Melia, Mark Wise, and Yue Zhang for comments on the draft and Martin Savage for discussions. H. L. and K. Z. are supported by the DoE under Contract No. DE-AC02-05CH11231. H. L. is also supported by NSF Grant No. PHY-1316783. M. G. is supported by the Murdock Charitable Trust.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-05CH11231
M. J. Murdock Charitable TrustUNSPECIFIED
Issue or Number:3
Record Number:CaltechAUTHORS:20190613-164151450
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96433
Deposited By: George Porter
Deposited On:18 Jun 2019 22:33
Last Modified:16 Nov 2021 17:20

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